[JavaScript] dataType / arrayType / splice() / push() / length
์์๊ฐ ์ค์ํ์ง ์์ ๋ฐ์ดํฐ๋ค์ object type , ์์๊ฐ ์ค์ํ ๋ฐ์ดํฐ๋ค์ array type ์ผ๋ก ๊ด๋ฆฌํ๋ค. arrayType ์ด๋ ต์ง ์์! ํ์ด์ฌ๊ณผ ๋น์ทํจ ์์ ๋ฅผ ๋ณด์. let foods = ["๋ง๋","๊ณ ๊ธฐ","์ผ์ดํฌ","์ค์","๋ก๋ณถ์ด"]; >> foods >> (5) ['๋ง๋', '๊ณ ๊ธฐ', '์ผ์ดํฌ', '์ค์', '๋ก๋ณถ์ด'] >> foods[1] >> '๊ณ ๊ธฐ' object / function / array ๊ตฌ๋ถ object . function ( ) array [index] , . object์์๋ plain object์ array๊ฐ ํฌํจ๋์์ด array๋ .์ด ๊ฐ๋ฅํ๋ค. arrayType ์์ ํ๊ธฐ let foods = ["๋ง๋","๊ณ ๊ธฐ","์ผ์ดํฌ","์ค์","๋ก๋ณถ์ด"]; //๋ฐฐ์ด์ ํน..
